Home / 20,880,123.16-31,310,058.90-12,247,044.64

Finding the Fourth Proportional to 20,880,123.16, 31,310,058.90 and 12,247,044.64

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Solution

The fourth proportional to 20,880,123.16, 31,310,058.90 and 12,247,044.64 is: 18,364,627.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,880,123.16 : 31,310,058.90 = 12,247,044.64 : x
  2. Step 2: Convert to fraction form
    20,880,123.16/31,310,058.90 = 12,247,044.64/x
  3. Step 3: Cross multiply
    20,880,123.16x = 31,310,058.90 × 12,247,044.64
  4. Step 4: Simplify right side
    20,880,123.16x = 383,455,689,029,329.31
  5. Step 5: Solve for x
    x = 383,455,689,029,329.31/20,880,123.16
  6. Step 6: Final answer
    x = 18,364,627.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.